/Engine/Source/Runtime/Experimental/Chaos/Public/RewindData.h
Called before any sim callbacks are triggered but after physics data has marshalled over This means brand new physics particles are already created for example, and any pending game thread modifications have happened SeeISimCallbackObjectfor recording inputs to callbacks associated with this PhysicsStep
virtual void ProcessInputs_Internal ( int32 PhysicsStep, const [TArray](API\Runtime\Core\Containers\TArray)< [FSimCallbackInputAndObject](API\Runtime\Chaos\Chaos\FSimCallbackInputAndObject) > & SimCallbackInputs )